Results 111 to 120 of about 629,027 (290)

Efficient acceleration of relativistic magnetohydrodynamic jets [PDF]

Progress of Theoretical and Experimental Physics, 2013
18 pages, 7 figures, PTEP ...
Toma, Kenji, Takahara, Fumio
openaire   +2 more sources

An Extended Amplitude Range Readout Circuit for Charged Particle Detection–BEAR 2

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Charge sensitive amplifiers (CSA) form the first stage of most detector readout circuits. The operating range of the readout circuits depends on the saturation limits of the Charge sensitive amplifiers, thereby limiting the range of the detector system as well. A number of methods have been introduced to extend the dynamic range of the readout
A. Antony Gomez, R. W. Knepper, B. M Walsh, S. G. Kanekal, F. Gautier, G. Suarez   +5 more
wiley   +1 more source

An Unusual Change in the Radio Jets of GRS 1915+105

The Astrophysical Journal
We compare Very Large Array observations of GRS 1915+105 made in 1994 and 2023, with nearly three decades of difference. The source has experienced intriguing major changes.
Luis F. Rodríguez, I. Félix Mirabel
doaj   +1 more source

Microscopic Processes in Global Relativistic Jets Containing Helical Magnetic Fields: Dependence on Jet Radius

Galaxies, 2017
In this study, we investigate the interaction of jets with their environment at a microscopic level, which is a key open question in the study of relativistic jets.
Ken-Ichi Nishikawa, Yosuke Mizuno, Jose L. Gómez, Ioana Duţan, Athina Meli, Charley White, Jacek Niemiec, Oleh Kobzar, Martin Pohl, Asaf Pe’er, Jacob Trier Frederiksen, Åke Nordlund, Helene Sol, Philip E. Hardee, Dieter H. Hartmann   +14 more
doaj   +1 more source

EVOLUTION OF GLOBAL RELATIVISTIC JETS: COLLIMATIONS AND EXPANSION WITH kKHI AND THE WEIBEL INSTABILITY [PDF]

, 2015
In the study of relativistic jets one of the key open questions is their interaction with the environment. Here we study the initial evolution of both electron–proton ( e – − p + ?> ) and electron–positron (e±) relativistic jets, focusing on their ...
K. Nishikawa, J. Frederiksen, Å. Nordlund, Y. Mizuno, P. Hardee, J. Niemiec, J. Gómez, A. Pe’er, I. Duţan, A. Meli, H. Sol, M. Pohl, D. Hartmann   +12 more
semanticscholar   +1 more source

Combining Van Allen Probes and CubeSat Observations to Estimate Storm‐Time Maximum Outer Radiation Belt Electron Fluxes

Space Weather, Volume 24, Issue 1, January 2026.
Abstract Understanding and forecasting extreme radiation belt electron fluxes has been a major goal in space weather since their discovery in 1958. In this study, by combining electron flux data from multiple satellite missions in different orbits, including Van Allen Probes, Electron Losses and Fields Investigation, and Colorado Inner Radiation Belt ...
Man Hua, Jacob Bortnik, Yangyang Shen, Vassilis Angelopoulos, Yang Mei, Xinlin Li, Colin Wilkins   +6 more
wiley   +1 more source

INTRACLUSTER MEDIUM REHEATING BY RELATIVISTIC JETS [PDF]

The Astrophysical Journal, 2011
Accepted for publication in ...
Perucho, Manel, Quilis, Vicent, Martí, José María   +2 more
openaire   +2 more sources

Forecasting SEP Atmospheric and Space Radiation by Coupling UMASEP and NAIRAS Models

Space Weather, Volume 24, Issue 1, January 2026.
Abstract The Nowcast of Aerospace Ionizing RAdiation System (NAIRAS) model predicts the radiation environment from the Earth's surface to free‐space. The model output provides dosimetric and particle flux quantities required to assess the hazardous radiation impacts to human health and adverse effects on vehicle electronic systems.
Christopher J. Mertens, Guillaume P. Gronoff, Daniel B. Phoenix, Marlon Núñez, Yihua Zheng   +4 more
wiley   +1 more source

Jet stability, dynamics and energy transport

, 2011
Relativistic jets carry energy and particles from compact to very large scales compared with their initial radius. This is possible due to their remarkable collimation despite their intrinsic unstable nature.
Bodo G., Ferrari A., Gopal-Krishna, Hummel C. A., Perucho M., Perucho M.   +5 more
core   +1 more source

Characterization of the Western Pictor A Hotspot in Hard X-Rays with NuSTAR

The Astrophysical Journal
The origin of X-ray emission from the resolved kiloparsec-scale jets and hotspots of many active galactic nuclei remains uncertain, particularly where the X-ray emission is separate from the radio-optical synchrotron component.
Aamil Shaik, Eileen T. Meyer, Karthik Reddy, Sibasish Laha, Markos Georganopoulos   +4 more
doaj   +1 more source